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K9 Advantix II

Starts $66.96 $46.99 
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Step 1. Select Pet's Weight:

Dog

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4 pack
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$94.04
$82.49
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Starts $66.96 $46.99 
Ships in one business day or less

Step 1. Select Pet's Weight:

Dog

Step 2. Select a Supply:

4 pack
$66.96
$58.74
$46.99
Price w/coupon SAVE20
Free Shipping
6 pack
$94.04
$82.49
$65.99
Price w/coupon SAVE20
Free Shipping
Save $4 over 4 pk
12 pack
$178.07
$156.20
$124.96
Price w/coupon SAVE20
Free Shipping
Save $16 over 4 pk

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Product Info

What is K9 Advantix II?

K9 Advantix II is a monthly preventative for dogs that offers comprehensive protection against ticks, fleas, mosquitoes, biting flies, and chewing lice. K9 Advantix II is a top veterinarian-recommended brand because it repels and kills all life stages of fleas (eggs, pupae, larvae, and adult fleas) and ticks (Deer ticks, American dog ticks, Brown dog ticks, and Lone Star ticks). K9 Advantix II kills 98-100 percent of fleas within 12 hours and continues working for one month to prevent infestations. Fleas and ticks are killed on contact with a treated dog, which means that fleas don't have to bite and ticks don't have to attach to die. This helps prevent transmission of flea-borne and tick-borne diseases such as tapeworms, Lyme disease, tick paralysis, ehrlichia, and Rocky Mountain spotted fever. Killing fleas before they bite may also help prevent skin allergies caused by flea saliva. As well, K9 Advantix II repels mosquitoes before they bite, which may help prevent transmission of heartworms. K9 Advantix II protects your pet before parasites have a chance to bite, not after.

For:

Dogs and Puppies (7+ weeks of age, weighing 4+ lbs)

Benefits:

  • Repels and kills disease-carrying fleas, ticks, and mosquitoes before they bite
  • Kills all life stages of fleas (eggs, pupae, larvae, and adult fleas) and ticks (Deer ticks, American dog ticks, Brown dog ticks, and Lone Star ticks)
  • Kills 98-100 percent of adult fleas within 12 hours
  • Ends flea life cycle by preventing flea offspring (eggs, pupae, and larvae) from maturing into adult fleas
  • Repels biting flies and kills chewing lice
  • Provides one month of protection against ticks, fleas, mosquitoes, biting flies
  • Waterproof - remains effective following a shampoo treatment, swimming or after exposure to rain or sunlight

How does K9 Advantix II work?

K9 Advantix II combines imidacloprid and permethrin to repel and kill fleas, ticks, and mosquitoes. Both ingredients work on contact, attacking parasite nerve cells at different sites. Together these ingredients overwhelm the nervous system killing the parasite. Pyriproxyfen is an insect growth regulator. K9 Advantix II topical solution also repels biting flies and kills lice.

Cautions:

DO NOT USE ON CATS. Cats cannot metabolize the ingredients used in this product. Cats must be separated from dogs during treatment. Do not allow your cat to come in contact with a treated dog for 24 hours. Some small and medium dogs may have an adverse skin reaction.

Brand Name:

K9 Advantix II (Bayer)

What is the most important thing I should know about K9 Advantix II?

The active ingredients in K9 Advantix II are Imidacloprid (8.8%), Permethrin (44.0%), and Pyriproxyfen (0.44%). K9 Advantix II is for use on dogs and puppies weighing 4 lbs or more and 7 weeks of age or older. It is used for the topical prevention and treatment of ticks, fleas, mosquitoes, biting flies, and chewing lice on dogs. K9 Advantix II repels and kills ticks including deer ticks (the major carrier of Lyme disease), American dog ticks, Brown dog ticks and lone star ticks. Additionally, K9 Advantix II repels and kills all life stages of fleas, repels and kills mosquitoes, kills chewing lice, and repels biting flies. K9 Advantix II is a non-prescription (OTC) product available as 0.014 fl oz (0.4 ml) applicators for dogs 4-10 lbs (Green), 0.034 fl oz (1.0 ml) applicators for dogs 11-20 lbs (Teal), 0.084 fl oz (2.5 ml) applicators for dogs 21-55 lbs (Red), and 0.135 fl oz (4.0 ml) applicators for dogs over 55 lbs (Blue).

What should I discuss with my veterinarian before giving K9 Advantix II to my pet?

Consult a veterinarian before using on medicated animals and debilitated, aged, pregnant or nursing animals.

How should K9 Advantix II be applied?

For use only on dogs. Do not use on cats or on other animals. Have your dog stand for easy application. Part the hair on your dog's back between the shoulder blades, until the skin is visible. For dogs up to 20 lbs, apply the entire contents of the applicator tube to 2 or 3 spots on the top of the back from the shoulder to the base of the tail. For dogs 21 lbs and over, apply the entire contents of the applicator tube to 4 or 6 spots on the top of the back from the shoulder to the base of the tail. If your household has cats or other pets, separate them from the treated dog for 24 hours.

What are the potential side effects of K9 Advantix II?

Monitor your dog after application. Side effects may include signs of skin irritation such as redness, scratching, or other signs of discomfort. Gastrointestinal signs such as vomiting or diarrhea have also been reported. If these or other side effects (such as lethargy or agitation) occur, consult your veterinarian or call 1-800-422-9874. Individual sensitivities, while rare, may occur after using any pesticide product for pets. A small percentage of dogs have had adverse reactions to K9 Advantix II. A sensation of burning, tingling, itching, redness or numbness of the skin may occur after topical application. This sensation usually begins 1-2 hours after application. In addition, reactions have occurred in cats that have been exposed to a medicated dog. That is why it is important to separate your cat from a medicated dog for 24 hours. Bayer, the manufacturer of K9 Advantix II, indicates that some of these symptoms will dissipate within 48 hours; however, if your pet is experiencing adverse reactions, please complete the following steps:

  • Stop applying the medication
  • Wash your dog with a detergent based soap (Dawn or Palmolive dish detergents work best). Do not scrub the affected area, as this may cause more skin irritation. Please note: This process is applicable for both dogs and cats.
  • Call your veterinarian
  • Call Bayer Emergency Support Line at 1-800-422-9874. Let Bayer know your dog is having an adverse reaction to K9 Advantix by calling 1-800-422-9874. This line is staffed 24 hours a day, 7 days a week.

What happens if I miss giving a dose of K9 Advantix II?

If you miss a dose, apply the next dose as soon as possible and resume a monthly schedule.

What happens if I overdose my pet on K9 Advantix II?

Contact your veterinarian or veterinary emergency room.

What should I avoid while giving K9 Advantix II to my pet?

This product is for external use only on dogs and puppies 4 lbs or more and 7 weeks or older. Do not get this product in your dog's eyes or mouth. Do not use this product on animals other than dogs. In households with cats, separate the treated dog for about 24 hours. Due to their unique physiology and inability to metabolize certain compounds, this product must not be used on cats. If applied to a cat, or ingested by a cat which actively grooms a recently treated dog, this product may have serious harmful effects. If this occurs, contact your veterinarian immediately. It is important to apply this product no more than once a month and to use the correct strength for the weight of the dog. This product is harmful to humans if swallowed. Call a physician or poison control center for advice. Have the patient sip water. Do not induce vomiting unless advised to and the patient is conscious. This product can cause substantial but temporary eye injury. Do not get in eyes or on skin or clothing. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or using the toilet. Remove and wash contaminated clothing before reuse..

What other drugs will affect K9 Advantix II?

If your pet is on medication, consult your veterinarian before using this or any other product.

How to Use

K9 Advantix II Directions:

HOW TO OPEN

  1. Be sure the tube is at the bottom of the pouch.
  2. Using scissors, cut the pouch across the top and remove the tube.

HOW TO APPLY

  1. Use only on Dogs. DO NOT USE ON CATS or other animals.
  2. Do not apply to dogs weighing less than 4 lbs.
  3. Remove the applicator tube from the package. Use scissors to peel down foil.
  4. Hold the applicator tube in an upright position. Pull the cap off the tube.
  5. Turn the cap around and place the other end of the cap back on the tube.
  6. Your dog should be standing for easy application. Evenly apply the entire contents of the K9 Advantix II tube to two or three spots on the top of the back from the shoulder to the base of the tail. At each spot, part the hair until the skin is visible. Place the tip of the tube on the skin and gently squeeze to expel a portion of the solution on the skin. Do not apply an excessive amount of solution at any one spot that could cause some of the solution to run off the side of your dog. Do not get this product in your dog's eyes or allow your dog to ingest this product.
  7. Discard the empty tube as described in Storage and Disposal.
  8. In cases of severe pest infestations, retreatment is allowable earlier than four (4) weeks. Do not retreat more of often than once every seven (7) days. After pest control is attained, return to a monthly retreatment schedule.
Tip:

In households with cats, separate the treated dog for 24 hours until the product is thoroughly dry.

K9 Advantix II Dosage for Dogs:

Dogs/Puppies (7+ weeks of age, weighing 4+ lbs):
Weight Amount
1-3 lbs Do not use
4-10 lbs Apply contents of 1 applicator once a month (Green Box)
11-20 lbs Apply contents of 1 applicator once a month (Teal Box)
21-55 lbs Apply contents of 1 applicator once a month (Red Box)
Over 55 lbs Apply contents of 1 applicator once a month (Blue Box)
K9 Advantix II Dosage for Cats:
Cats
Do not use!
K9 Advantix II Dosage for Horses:
Horses
Do not use!
Storage:

Do not contaminate water, food or feed by storage or disposal.

Environmental Hazards:

This product is extremely toxic to aquatic organisms, including fish and invertebrates. Do not add directly to water. Do not contaminate water when disposing of product or packaging.

Pesticide Storage:

Store K9 Advantix II in a cool, dry place. Protect from freezing.

Pesticide Disposal and Container Handling:

Nonrefillable container.

If empty:

Do not reuse this container. Place in trash or offer for recycling, if available.

If partly filled:

Call your local solid waste agency or 1-800-422-9874 for disposal instructions. Never place unused product down any indoor or outdoor drain.

Do not refrigerate. Store in the original container only. Do not reuse original container. If the container is empty place in trash or offer for recycling if available. If the container is partially filled, call for disposal instructions. Never place unused product down any indoor or outdoor drain.

Ingredients

K9 Advantix II Ingredients:

K9 Advantix II for Dogs 4-10 lbs (Small Dog - Green Box) (0.4 ml):
Active Ingredients (per applicator tube) % By Weight
Imidacloprid 8.80%
Permethrin* 44.0%
Pyriproxyfen 0.44%
Other Ingredients (not specified) 46.76%
*cis/trans ratio: Max 55% (+/-) cis and min 45% (+/-) trans
K9 Advantix II for Dogs 11-20 lbs (Medium Dog - Teal Box) (1.0 ml):
Active Ingredients (per applicator tube) % By Weight
Imidacloprid 8.80%
Permethrin* 44.0%
Pyriproxyfen 0.44%
Other Ingredients (not specified) 46.76%
*cis/trans ratio: Max 55% (+/-) cis and min 45% (+/-) trans
K9 Advantix II for Dogs 21-55 lbs (Large Dog - Red Box) (2.5 ml):
Active Ingredients (per applicator tube) % By Weight
Imidacloprid 8.80%
Permethrin* 44.0%
Pyriproxyfen 0.44%
Other Ingredients (not specified) 46.76%
*cis/trans ratio: Max 55% (+/-) cis and min 45% (+/-) trans
K9 Advantix II for Dogs over 55 lbs (Extra Large Dog - Blue Box) (4.0 ml):
Active Ingredients (per applicator tube) % By Weight
Imidacloprid 8.80%
Permethrin* 44.0%
Pyriproxyfen 0.44%
Other Ingredients (not specified) 46.76%
*cis/trans ratio: Max 55% (+/-) cis and min 45% (+/-) trans
Customer Reviews

is there a medication similar to Advantix for cats?

Asked by: Lisa
Thank you for your inquiry. We offer Advantage II for cats which kills fleas and we also offer Frontline Plus flea and tick preventative for cats.
Answered by: Crystal PetMed Pro
Date published: 2017-10-17

Can advantix be substituted for nexgard safely. 

Asked by: JoeM
Thank you for your question. The K9 Advantix is effective for up to 30 days. So it should be safe to change the flea and tick prevention within 30-35 days of the last prevention being used. However as Nexgard is a prescription medication it would be determined by your vet if the product is a good fit for you furry friend based on your furry friends medical history.
Answered by: Crystal PetMed Pro
Date published: 2017-10-12

It seems that my current dog may have some sort of a reaction to this product, but I'm not sure. She seems to get very sleepy and loses her appetite for a week after I apply this. Anyone else? Or is this just a coincidence. I've noticed it once before...

Asked by: Emgees
Thank you for your inquiry. We are sorry your furry friend seems to be having an adverse reaction to the medication. Lethargy is a side effect of the medication and it is recommended to discontinue use of the product and consult your veterinarian or call 1-800-422-9874. Individual sensitivities, while rare, may occur after using any pesticide product for pets. If you purchased the product directly from us please call us at 1-800-738-6337.
Answered by: Crystal PetMed Pro
Date published: 2017-09-27

I applied to my dog one week ago, seems to be very effective. She has the flea dermitis though, can she be bathed, will shampoo affect the treatment?

Asked by: Ivy girl
Using a shampoo that strips the oils off the skin will affect how well the product works, so using a soap-free shampoo once or twice a month will be fine.
Answered by: SuzyCVT
Date published: 2017-11-05

What is the difference between advantix and advantix 11

Asked by: Nita
Advantage II does not kill or prevent ticks. Where as K9 Advantix II kills/repels both fleas, ticks and mosquitoes.
Answered by: Crystal PetMed Pro
Date published: 2017-09-02

I just used "Advantage flea & tick spray" on my dog. How long do I have to wait until I use this K9Advantix treatment on him?

Asked by: Sahar
Thank you for your question. I was unable to find the Advantage flea & tick spray. If that is the same thing as the Advantage treatment spray, then the effects should last for 100 days. Repeat as required but not more often than every 7 days (1 week). You should not use K9Advantix as that would provide double coverage which is not necessary and increasing the dosage of the drug can cause harm to your dog. Please consult with your veterinarian for other options that may be better suited.
Answered by: leanniejo
Date published: 2017-08-10

My father only put a half dosage on our cats and said he's done it before but I'm literally freaking out because it says not for cats can someone please tell me if this is okay 

Asked by: Hidden
Thank you for your question. Due to cats' unique physiology and inability to metabolize certain compounds, this product must not be used on cats. If applied to a cat, or ingested by a cat which actively grooms a recently treated dog, this product may have serious harmful effects. If this occurs, contact your veterinarian immediately.
Answered by: leanniejo
Date published: 2017-08-10

I'd like to order some flea mediation for my dogs however I've bought some over the counter before and it does not work. Is this stuff the kind you get at the vets? The kind they prescribe at the vets?

Asked by: Krista78kat
K9 Advantix II is an over the counter medication and does not require approval from a veterinarian. We do offer prescription flea and tick medication such as Bravecto and Nexgard.
Answered by: Crystal PetMed Pro
Date published: 2017-10-09

I used this product on my Pug, he is approximately 10 years old. I applied it on Sunday July 16th. He is still displaying signs of fleas, but nowhere near as bad as he was before using, can I reapply a new dose?

Asked by: Meferro
Thank you for your question. The earliest you can re -apply the medication is 3 weeks.
Answered by: Crystal PetMed Pro
Date published: 2017-07-18

I want to use on my shih tzu. She has had a time with fleas. Her skin is really irritated. Can I still use this product?

Asked by: Prissys mommy
This product can be used on your pup however, irritation of the skin can be a side effect. Watch your pet closely and call the vet if symptoms persist.
Answered by: Megan Student Pharmacist
Date published: 2017-08-05

Can you use this on a,puppy.

Asked by: Patches
Thank you for your question. This product is for dogs and Puppies (only over 4 lbs and 7 weeks of age or older).
Answered by: Crystal PetMed Pro
Date published: 2017-07-24

My dog is borderline medium/large according to weight limit guidelines...22lbs. I was told by my vet to go k9 advantix 4 larger dog.  The liquid dripped down the sides of my dog after applying it. If he did lick some of it off of himself would it harm him

Asked by: Nicolelisa
To avoid this in the future it is best to apply the tube to 4-6 spots on your pets back. Your pet should be fine if he only ingested a small amount however, if you notice any unusual side effects contact your veterinarian immediately.
Answered by: Megan Student Pharmacist
Date published: 2017-07-11

Can this size be used on a puppy

Asked by: Julia Enochs
K9 Advantix II is for dogs and puppies (only over 4 lbs and 7 weeks of age or older).
Answered by: Crystal PetMed Pro
Date published: 2017-07-16

Is it okay for a dog to sleep in my bed after using this product? Should I wait a certain amount of time?

Asked by: Linds123
Allow the product to fully dry on your dogs skin and it should be fine to sleep in bed with you. Keep your dog away from any cats in your home for the first 24 hours after application.
Answered by: Megan Student Pharmacist
Date published: 2017-07-05

Should I double the dose for dogs over 150 pounds?

Asked by: Tpjb4
One dose of the blue box (over 55lbs) will be the correct dose for your dog.
Answered by: Megan Student Pharmacist
Date published: 2017-07-04

Can I use topical and oral tick prevention together? K9Advantix and Nexguard or Bravecto.

Asked by: Julz
It is recommended to use one product (either topical or oral) once every 30 days.
Answered by: Megan Student Pharmacist
Date published: 2017-06-28

I see everyone wants to know can they bathe their dog after using the k9 advantix I want to know how long do I i need to wait to use it after I've given them a bath?

Asked by: MissTammy
Spot on product should be applied on dry animals, on dry skin and coat. It is recommended that they are applied after 2-3 days from bathing as the skin needs a period to regain its natural balance of oily substances and pH.
Answered by: Crystal PetMed Pro
Date published: 2017-09-02

How quickly does the medication absorb into the skin? My dog decided to give himself a good shake after application and I'm worried he lost some of the medication  

Asked by: Tech
Hello Tech, The medication kills 98-100 percent of fleas within 12 hours and continues working for one month. However it is topical and is not fully absorbed into the system. If you feel like your dog shook off some of the medication, you may monitor your pet and see how the flea and ticks are being controlled, and if you feel like you pet was under medicated you may be able to reapply the product 2-3 weeks later safely.
Answered by: Nemi Pharmacy Intern
Date published: 2017-07-30

Is this 45.00 for monthly or is there more in a package?

Asked by: Lisa
We offer the product as a 4 pack (4 doses), 6 pack (6 doses) and 12 pack (12 doses). You are suppose to give one dose per month based on your pets weight. We do not sell this product on a month by month ( individual dose) basis.
Answered by: Crystal PetMed Pro
Date published: 2017-06-15

How soon after application can the dog be bathed?

Asked by: Stacy
It is best to wait at least 48 hours before bathing. In the case of flea and tick prevention, this allows the product to begin working effectively.
Answered by: Crystal PetMed Pro
Date published: 2017-09-02

Does K9 advantix have to be re-applied after a bath ? Example, I applied it to Major on the 1st of the month, but on the 14th he had to be bathed. Do I need to re-apply ? I don't want to over medicate him. Major Sammy is a 7 yr old, 126 lb.s rottie.

Asked by: dog lover
Thank you for your question. The medication is waterproof and continues working even after your dog becomes wet. The medication is to be applied every 30 days.
Answered by: Crystal PetMed Pro
Date published: 2017-06-10

My dog is 11, has epilepsy that is controlled. Is this safe to use on dogs with epilepsy?

Asked by: Oct_33
As the medication is not systematic and does not actual enter your pets blood stream and is topical there is no reason why your pet cannot use the medication. You of course as with all medication want to monitor your pet for any adverse reactions.
Answered by: Crystal PetMed Pro
Date published: 2017-06-07

Can i bathe my dogs after application?

Asked by: KaylaL
Yes. Please allow 24-48 hours after application before bathing your furry baby.
Answered by: Cherley Petmeds Pro
Date published: 2017-08-06

I applied my dog's first dose of this medication on 5/24 and just found a slowly becoming engorged tick on his paw this morning. How effective is this medicine supposed to be, especially in areas with bad tick and mosquitoes already for the year?

Asked by: ShibaInuMom
K9 Advantix II kills 98-100 percent of fleas within 12 hours and continues working for one month to prevent infestations. Fleas and ticks are killed on contact with a treated dog, which means that fleas don't have to bite and ticks don't have to attach to die. Please note, we guarantee your complete satisfaction or you get your money back. Please call us at 1-800-738-6337 or email us at customerservice@1800petmeds.com if you need further assistance.
Answered by: Cherley Petmeds Pro
Date published: 2017-06-01

Is this product or any other topicals working in central FL.  ?  Anyone know by chance?

Asked by: Shell00
Thank you for your question. The K9 Advantix is a great product and one of our best sellers in Florida.
Answered by: Crystal PetMed Pro
Date published: 2017-06-16

My dogs are 175lbs, 110lbs and 90lbs. How much would I give them, more applications of the extra large? If so how many. Is this a 30 day treatment?

Asked by: droptoast
Thank you for your question. You would need to purchase the 55lb & up dosage. Each of your furry friends would use one vial/ dose each per month. The medication continues working for one month to prevent infestations.
Answered by: Crystal PetMed Pro
Date published: 2017-05-30

May i use on pregnant dog

Asked by: allen 4145
Do not give K9 Advantix to pregnant or lactating dogs. If you suspect your dog may be pregnant, ask your vet before you give your dog the dosage of K9 Advantix.
Answered by: Crystal PetMed Pro
Date published: 2017-09-27

Why does my WHITE Siberia Husky turn Black everywhere I apply this flea medication to his back?

Asked by: Snow
It may be the fleas that are attempting to bite your furry baby and dying. Please note, we guarantee your complete satisfaction or you get your money back. Please call us at 1-800-738-6337 or email us at customerservice@1800petmeds.com so we can further assist you.
Answered by: Cherley Petmeds Pro
Date published: 2017-05-24

Is a prescription required?

Asked by: Sammy
No, K9 Advantix II is over the counter.
Answered by: Cherley Petmeds Pro
Date published: 2017-05-16

1.My (female) giant schnauzer weight varies betw, 54-57 lbs--which dosage recommended? 2. Now using Frontine, while visiting NC missed her monthly application by 2 days & she picked up a few fleas. Is there any "leeway" in Advantix monthly application?

Asked by: Irish60
If your furry baby is over 54 lbs, you may purchase the dosage for dogs 55 lbs and up.
Answered by: Cherley Petmeds Pro
Date published: 2017-05-29
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Q&A

is there a medication similar to Advantix for cats?

Asked by: Lisa
Thank you for your inquiry. We offer Advantage II for cats which kills fleas and we also offer Frontline Plus flea and tick preventative for cats.
Answered by: Crystal PetMed Pro
Date published: 2017-10-17

Can advantix be substituted for nexgard safely. 

Asked by: JoeM
Thank you for your question. The K9 Advantix is effective for up to 30 days. So it should be safe to change the flea and tick prevention within 30-35 days of the last prevention being used. However as Nexgard is a prescription medication it would be determined by your vet if the product is a good fit for you furry friend based on your furry friends medical history.
Answered by: Crystal PetMed Pro
Date published: 2017-10-12

It seems that my current dog may have some sort of a reaction to this product, but I'm not sure. She seems to get very sleepy and loses her appetite for a week after I apply this. Anyone else? Or is this just a coincidence. I've noticed it once before...

Asked by: Emgees
Thank you for your inquiry. We are sorry your furry friend seems to be having an adverse reaction to the medication. Lethargy is a side effect of the medication and it is recommended to discontinue use of the product and consult your veterinarian or call 1-800-422-9874. Individual sensitivities, while rare, may occur after using any pesticide product for pets. If you purchased the product directly from us please call us at 1-800-738-6337.
Answered by: Crystal PetMed Pro
Date published: 2017-09-27

I applied to my dog one week ago, seems to be very effective. She has the flea dermitis though, can she be bathed, will shampoo affect the treatment?

Asked by: Ivy girl
Using a shampoo that strips the oils off the skin will affect how well the product works, so using a soap-free shampoo once or twice a month will be fine.
Answered by: SuzyCVT
Date published: 2017-11-05

What is the difference between advantix and advantix 11

Asked by: Nita
Advantage II does not kill or prevent ticks. Where as K9 Advantix II kills/repels both fleas, ticks and mosquitoes.
Answered by: Crystal PetMed Pro
Date published: 2017-09-02

I just used "Advantage flea & tick spray" on my dog. How long do I have to wait until I use this K9Advantix treatment on him?

Asked by: Sahar
Thank you for your question. I was unable to find the Advantage flea & tick spray. If that is the same thing as the Advantage treatment spray, then the effects should last for 100 days. Repeat as required but not more often than every 7 days (1 week). You should not use K9Advantix as that would provide double coverage which is not necessary and increasing the dosage of the drug can cause harm to your dog. Please consult with your veterinarian for other options that may be better suited.
Answered by: leanniejo
Date published: 2017-08-10

My father only put a half dosage on our cats and said he's done it before but I'm literally freaking out because it says not for cats can someone please tell me if this is okay 

Asked by: Hidden
Thank you for your question. Due to cats' unique physiology and inability to metabolize certain compounds, this product must not be used on cats. If applied to a cat, or ingested by a cat which actively grooms a recently treated dog, this product may have serious harmful effects. If this occurs, contact your veterinarian immediately.
Answered by: leanniejo
Date published: 2017-08-10

I'd like to order some flea mediation for my dogs however I've bought some over the counter before and it does not work. Is this stuff the kind you get at the vets? The kind they prescribe at the vets?

Asked by: Krista78kat
K9 Advantix II is an over the counter medication and does not require approval from a veterinarian. We do offer prescription flea and tick medication such as Bravecto and Nexgard.
Answered by: Crystal PetMed Pro
Date published: 2017-10-09

I used this product on my Pug, he is approximately 10 years old. I applied it on Sunday July 16th. He is still displaying signs of fleas, but nowhere near as bad as he was before using, can I reapply a new dose?

Asked by: Meferro
Thank you for your question. The earliest you can re -apply the medication is 3 weeks.
Answered by: Crystal PetMed Pro
Date published: 2017-07-18

I want to use on my shih tzu. She has had a time with fleas. Her skin is really irritated. Can I still use this product?

Asked by: Prissys mommy
This product can be used on your pup however, irritation of the skin can be a side effect. Watch your pet closely and call the vet if symptoms persist.
Answered by: Megan Student Pharmacist
Date published: 2017-08-05

Can you use this on a,puppy.

Asked by: Patches
Thank you for your question. This product is for dogs and Puppies (only over 4 lbs and 7 weeks of age or older).
Answered by: Crystal PetMed Pro
Date published: 2017-07-24

My dog is borderline medium/large according to weight limit guidelines...22lbs. I was told by my vet to go k9 advantix 4 larger dog.  The liquid dripped down the sides of my dog after applying it. If he did lick some of it off of himself would it harm him

Asked by: Nicolelisa
To avoid this in the future it is best to apply the tube to 4-6 spots on your pets back. Your pet should be fine if he only ingested a small amount however, if you notice any unusual side effects contact your veterinarian immediately.
Answered by: Megan Student Pharmacist
Date published: 2017-07-11

Can this size be used on a puppy

Asked by: Julia Enochs
K9 Advantix II is for dogs and puppies (only over 4 lbs and 7 weeks of age or older).
Answered by: Crystal PetMed Pro
Date published: 2017-07-16

Is it okay for a dog to sleep in my bed after using this product? Should I wait a certain amount of time?

Asked by: Linds123
Allow the product to fully dry on your dogs skin and it should be fine to sleep in bed with you. Keep your dog away from any cats in your home for the first 24 hours after application.
Answered by: Megan Student Pharmacist
Date published: 2017-07-05

Should I double the dose for dogs over 150 pounds?

Asked by: Tpjb4
One dose of the blue box (over 55lbs) will be the correct dose for your dog.
Answered by: Megan Student Pharmacist
Date published: 2017-07-04

Can I use topical and oral tick prevention together? K9Advantix and Nexguard or Bravecto.

Asked by: Julz
It is recommended to use one product (either topical or oral) once every 30 days.
Answered by: Megan Student Pharmacist
Date published: 2017-06-28

I see everyone wants to know can they bathe their dog after using the k9 advantix I want to know how long do I i need to wait to use it after I've given them a bath?

Asked by: MissTammy
Spot on product should be applied on dry animals, on dry skin and coat. It is recommended that they are applied after 2-3 days from bathing as the skin needs a period to regain its natural balance of oily substances and pH.
Answered by: Crystal PetMed Pro
Date published: 2017-09-02

How quickly does the medication absorb into the skin? My dog decided to give himself a good shake after application and I'm worried he lost some of the medication  

Asked by: Tech
Hello Tech, The medication kills 98-100 percent of fleas within 12 hours and continues working for one month. However it is topical and is not fully absorbed into the system. If you feel like your dog shook off some of the medication, you may monitor your pet and see how the flea and ticks are being controlled, and if you feel like you pet was under medicated you may be able to reapply the product 2-3 weeks later safely.
Answered by: Nemi Pharmacy Intern
Date published: 2017-07-30

Is this 45.00 for monthly or is there more in a package?

Asked by: Lisa
We offer the product as a 4 pack (4 doses), 6 pack (6 doses) and 12 pack (12 doses). You are suppose to give one dose per month based on your pets weight. We do not sell this product on a month by month ( individual dose) basis.
Answered by: Crystal PetMed Pro
Date published: 2017-06-15

How soon after application can the dog be bathed?

Asked by: Stacy
It is best to wait at least 48 hours before bathing. In the case of flea and tick prevention, this allows the product to begin working effectively.
Answered by: Crystal PetMed Pro
Date published: 2017-09-02

Does K9 advantix have to be re-applied after a bath ? Example, I applied it to Major on the 1st of the month, but on the 14th he had to be bathed. Do I need to re-apply ? I don't want to over medicate him. Major Sammy is a 7 yr old, 126 lb.s rottie.

Asked by: dog lover
Thank you for your question. The medication is waterproof and continues working even after your dog becomes wet. The medication is to be applied every 30 days.
Answered by: Crystal PetMed Pro
Date published: 2017-06-10

My dog is 11, has epilepsy that is controlled. Is this safe to use on dogs with epilepsy?

Asked by: Oct_33
As the medication is not systematic and does not actual enter your pets blood stream and is topical there is no reason why your pet cannot use the medication. You of course as with all medication want to monitor your pet for any adverse reactions.
Answered by: Crystal PetMed Pro
Date published: 2017-06-07

Can i bathe my dogs after application?

Asked by: KaylaL
Yes. Please allow 24-48 hours after application before bathing your furry baby.
Answered by: Cherley Petmeds Pro
Date published: 2017-08-06

I applied my dog's first dose of this medication on 5/24 and just found a slowly becoming engorged tick on his paw this morning. How effective is this medicine supposed to be, especially in areas with bad tick and mosquitoes already for the year?

Asked by: ShibaInuMom
K9 Advantix II kills 98-100 percent of fleas within 12 hours and continues working for one month to prevent infestations. Fleas and ticks are killed on contact with a treated dog, which means that fleas don't have to bite and ticks don't have to attach to die. Please note, we guarantee your complete satisfaction or you get your money back. Please call us at 1-800-738-6337 or email us at customerservice@1800petmeds.com if you need further assistance.
Answered by: Cherley Petmeds Pro
Date published: 2017-06-01

Is this product or any other topicals working in central FL.  ?  Anyone know by chance?

Asked by: Shell00
Thank you for your question. The K9 Advantix is a great product and one of our best sellers in Florida.
Answered by: Crystal PetMed Pro
Date published: 2017-06-16

My dogs are 175lbs, 110lbs and 90lbs. How much would I give them, more applications of the extra large? If so how many. Is this a 30 day treatment?

Asked by: droptoast
Thank you for your question. You would need to purchase the 55lb & up dosage. Each of your furry friends would use one vial/ dose each per month. The medication continues working for one month to prevent infestations.
Answered by: Crystal PetMed Pro
Date published: 2017-05-30

May i use on pregnant dog

Asked by: allen 4145
Do not give K9 Advantix to pregnant or lactating dogs. If you suspect your dog may be pregnant, ask your vet before you give your dog the dosage of K9 Advantix.
Answered by: Crystal PetMed Pro
Date published: 2017-09-27

Why does my WHITE Siberia Husky turn Black everywhere I apply this flea medication to his back?

Asked by: Snow
It may be the fleas that are attempting to bite your furry baby and dying. Please note, we guarantee your complete satisfaction or you get your money back. Please call us at 1-800-738-6337 or email us at customerservice@1800petmeds.com so we can further assist you.
Answered by: Cherley Petmeds Pro
Date published: 2017-05-24

Is a prescription required?

Asked by: Sammy
No, K9 Advantix II is over the counter.
Answered by: Cherley Petmeds Pro
Date published: 2017-05-16

1.My (female) giant schnauzer weight varies betw, 54-57 lbs--which dosage recommended? 2. Now using Frontine, while visiting NC missed her monthly application by 2 days & she picked up a few fleas. Is there any "leeway" in Advantix monthly application?

Asked by: Irish60
If your furry baby is over 54 lbs, you may purchase the dosage for dogs 55 lbs and up.
Answered by: Cherley Petmeds Pro
Date published: 2017-05-29
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